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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#257580#7687. Randias Permutation TasklyzqsWA 235ms3520kbC++201.7kb2023-11-19 10:34:362023-11-19 10:34:36

Judging History

你现在查看的是最新测评结果

  • [2023-11-19 10:34:36]
  • 评测
  • 测评结果:WA
  • 用时:235ms
  • 内存:3520kb
  • [2023-11-19 10:34:36]
  • 提交

answer

#include <bits/stdc++.h>
#define il inline
#define ll unsigned long long
#define int ll
#define Mod 998244353
#define Max 200005
using namespace std;
il ll read()
{
	char c=getchar();
	ll x=0,f=1;
	while(c>'9'||c<'0')
	{
		if(c=='-') f=-1;
		c=getchar();
	}
	while(c>='0'&&c<='9')
	{
		x=x*10+c-'0';
		c=getchar();
	}
	return x*f;
}
int n,m,b,vst[Max];
vector<int> p[185];
vector<int> calc(vector<int> a,vector<int> b)
{
	vector<int> c;
	for(int i=0;i<b.size();i++)
	{
		c.push_back(a[b[i]-1]);
	}
	return c;
}
map<int,int> h,h2;
int ans=0;
int geths(vector<int> res)
{
	int hs=0,bs=233;
	for(int i=0;i<n;i++) hs=hs*bs+res[i];
	return hs;
}
int geths2(vector<int> res)
{
	int hs=0,bs=233;
	for(int i=0;i<n;i++) hs=(hs*bs%Mod+res[i])%Mod;
	return hs;
}
void dfs(int x)
{
	if(x==m+1)
	{
		vector<int> res;
		int flg=0;
		for(int i=1;i<=n;i++) res.push_back(i);
		for(int i=1;i<=n;i++)
		{
			if(vst[i]) res=calc(res,p[i]),flg=1;
		}
		if(!flg) return;
		int hs=geths(res);
		int hs2=geths2(res);
		h[hs]++;h2[hs2]++;
		if(h[hs]==1&&h2[hs2]==1) ans++;
		return;
	}
	vst[x]=1;
	dfs(x+1);
	vst[x]=0;
	dfs(x+1);
}
signed main()
{
	n=read(),m=read();
	for(int i=1;i<=m;i++)
	{
		for(int j=1;j<=n;j++) p[i].push_back(read());
	}
	if(m<20)
	{
		dfs(1);
	}
	else
	{
		vector<vector<int>> all;
		vector<int> res;
		for(int i=1;i<=n;i++) res.push_back(i);
		all.push_back(res);
		for(int i=1;i<=m;i++)
		{
			vector<vector<int>> nw;
			for(auto w:all)
			{
				auto k=calc(w,p[i]);
				int hs=geths(k),hs2=geths2(k);
				h[hs]++;h2[hs2]++;
				if(h[hs]==1&&h2[hs2]==1) nw.push_back(k),ans++;
			}
			for(auto w:nw)
			{
				all.push_back(w);
			}
		}
	}
	cout<<ans<<"\n";
}

Details

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Test #1:

score: 100
Accepted
time: 1ms
memory: 3412kb

input:

5 4
1 2 3 4 5
5 1 3 4 2
3 4 1 5 2
5 2 4 1 3

output:

8

result:

ok 1 number(s): "8"

Test #2:

score: 0
Accepted
time: 0ms
memory: 3376kb

input:

2 1
2 1

output:

1

result:

ok 1 number(s): "1"

Test #3:

score: 0
Accepted
time: 0ms
memory: 3436kb

input:

1 180
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
...

output:

1

result:

ok 1 number(s): "1"

Test #4:

score: 0
Accepted
time: 0ms
memory: 3384kb

input:

180 1
52 71 167 89 165 102 119 125 9 128 180 24 48 172 108 22 164 28 159 111 30 91 67 51 136 97 126 133 177 65 115 157 114 11 171 178 23 127 163 103 99 18 56 94 176 77 44 1 124 74 61 87 4 40 63 92 169 84 146 6 88 55 152 49 10 90 43 174 70 50 69 154 73 147 110 20 82 59 112 12 64 143 16 138 5 170 155 ...

output:

1

result:

ok 1 number(s): "1"

Test #5:

score: 0
Accepted
time: 0ms
memory: 3400kb

input:

2 90
1 2
1 2
1 2
1 2
2 1
2 1
2 1
2 1
1 2
2 1
1 2
1 2
1 2
2 1
2 1
2 1
2 1
1 2
1 2
1 2
1 2
2 1
1 2
2 1
1 2
1 2
1 2
2 1
2 1
1 2
2 1
1 2
2 1
1 2
1 2
2 1
1 2
2 1
2 1
2 1
2 1
1 2
2 1
2 1
2 1
2 1
1 2
1 2
2 1
2 1
1 2
1 2
1 2
2 1
1 2
2 1
2 1
1 2
2 1
2 1
2 1
2 1
2 1
2 1
2 1
1 2
1 2
1 2
2 1
1 2
1 2
2 1
1 2
1 2...

output:

2

result:

ok 1 number(s): "2"

Test #6:

score: 0
Accepted
time: 0ms
memory: 3372kb

input:

90 2
43 44 28 69 66 18 5 23 87 8 24 89 31 29 81 1 68 2 78 53 49 54 4 13 77 61 33 57 63 85 55 79 46 35 45 64 65 42 30 6 19 74 82 80 17 26 32 59 7 72 16 3 47 73 39 36 25 34 56 86 71 62 84 40 41 11 50 27 20 14 37 12 38 58 48 83 76 70 51 88 22 90 21 9 10 60 15 52 75 67
9 73 52 51 81 16 71 77 6 57 11 75 ...

output:

3

result:

ok 1 number(s): "3"

Test #7:

score: 0
Accepted
time: 1ms
memory: 3456kb

input:

3 60
2 1 3
3 1 2
3 2 1
1 2 3
1 2 3
3 2 1
3 1 2
2 3 1
2 1 3
3 1 2
2 3 1
2 3 1
2 1 3
3 2 1
3 1 2
3 2 1
1 2 3
2 1 3
2 1 3
2 1 3
2 3 1
2 3 1
2 3 1
3 1 2
1 2 3
3 1 2
2 3 1
2 3 1
2 1 3
1 2 3
3 1 2
2 1 3
2 3 1
2 3 1
2 3 1
3 1 2
2 3 1
1 2 3
1 2 3
3 2 1
3 1 2
3 1 2
2 3 1
1 3 2
3 1 2
1 3 2
1 2 3
1 3 2
1 3 2
3...

output:

6

result:

ok 1 number(s): "6"

Test #8:

score: 0
Accepted
time: 0ms
memory: 3380kb

input:

60 3
35 38 36 43 59 60 20 16 8 51 58 18 33 26 44 7 41 27 39 9 37 48 25 40 30 14 21 13 5 1 19 11 3 28 57 47 17 56 45 34 12 49 29 32 55 24 31 50 42 22 53 23 4 15 2 46 6 10 52 54
41 49 10 55 3 38 35 29 6 26 2 46 58 39 24 47 51 25 44 37 42 43 20 53 60 12 40 17 28 13 27 57 15 52 8 22 11 14 59 21 48 9 32 ...

output:

7

result:

ok 1 number(s): "7"

Test #9:

score: 0
Accepted
time: 0ms
memory: 3436kb

input:

4 45
1 3 4 2
2 3 4 1
4 1 3 2
4 1 2 3
1 4 3 2
3 4 2 1
2 3 4 1
1 3 2 4
2 1 4 3
4 2 3 1
4 1 3 2
1 3 4 2
2 4 3 1
4 2 3 1
1 3 2 4
3 2 1 4
2 3 4 1
3 2 4 1
1 2 4 3
4 1 2 3
4 3 2 1
3 4 1 2
1 3 2 4
2 4 3 1
4 2 1 3
2 3 4 1
4 2 1 3
4 2 3 1
1 2 3 4
1 3 2 4
1 4 3 2
3 2 4 1
2 3 1 4
1 3 4 2
3 1 2 4
1 3 2 4
3 2 4 1...

output:

24

result:

ok 1 number(s): "24"

Test #10:

score: 0
Accepted
time: 0ms
memory: 3384kb

input:

45 4
44 38 33 27 25 17 35 4 22 41 15 3 10 16 21 28 23 19 34 37 2 32 43 12 6 31 29 9 45 18 11 30 13 26 42 5 39 40 8 24 14 1 7 20 36
28 43 12 34 21 7 20 26 13 1 25 4 44 32 11 15 33 18 14 5 6 42 45 36 9 35 2 30 38 10 41 27 17 23 19 8 29 16 3 37 40 31 39 22 24
5 22 23 43 36 33 29 39 44 9 35 34 7 42 8 11...

output:

15

result:

ok 1 number(s): "15"

Test #11:

score: 0
Accepted
time: 2ms
memory: 3520kb

input:

18 10
13 4 18 16 1 8 17 6 14 2 10 12 5 9 3 11 15 7
1 7 15 13 12 2 17 18 16 11 9 8 6 14 3 4 10 5
1 9 3 4 6 14 5 10 12 13 7 8 16 2 15 17 18 11
2 10 16 3 17 8 4 13 12 11 5 7 14 9 1 15 18 6
7 9 4 14 10 2 17 6 8 16 1 13 12 5 11 18 15 3
13 4 16 10 5 2 9 1 11 3 18 8 6 12 15 14 7 17
9 14 18 17 2 12 16 10 15...

output:

1023

result:

ok 1 number(s): "1023"

Test #12:

score: -100
Wrong Answer
time: 235ms
memory: 3520kb

input:

10 18
9 6 4 8 3 7 10 1 2 5
10 9 8 3 5 6 1 2 7 4
8 2 5 4 9 3 1 7 6 10
10 5 2 8 1 6 4 7 9 3
2 3 5 4 10 9 6 8 7 1
6 7 8 10 5 3 4 1 9 2
10 6 4 2 1 5 3 8 9 7
6 8 9 1 2 4 5 3 7 10
7 6 3 1 5 9 2 10 4 8
10 5 7 4 9 1 2 6 3 8
5 4 6 9 3 7 8 1 2 10
5 9 8 2 7 1 3 10 6 4
5 2 10 3 7 1 4 6 9 8
1 10 2 6 5 7 8 9 3 4
...

output:

1023

result:

wrong answer 1st numbers differ - expected: '252941', found: '1023'